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eval: error message from matchN can be very large #3812

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rogpeppe opened this issue Mar 12, 2025 · 1 comment
Open

eval: error message from matchN can be very large #3812

rogpeppe opened this issue Mar 12, 2025 · 1 comment
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NeedsFix

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@rogpeppe
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What version of CUE are you using (cue version)?

0cd0a0c05996db4f998e2b90b2a70e37fc7d209c

Does this issue reproduce with the latest stable release?

Yes, similar (v0.12.0)

What did you do?

Run this script with testscript -e CUE_TOKEN=<app token for registry>:

env CUE_CACHE_DIR=$WORK/.cache
env CUE_CONFIG_DIR=$WORK/.config
exec cue login --token $CUE_TOKEN
exec cue vet -c .:schema data.json
-- cue.mod/module.cue --
module: "cuetest.example"
language: {
	version: "v0.11.0"
}
deps: {
	"github.com/cue-tmp/jsonschema-pub/exp3/npmjs/ava@v0": {
		v:       "v0.2.0"
		default: true
	}
	"github.com/cue-tmp/jsonschema-pub/exp3/npmjs/eslint@v0": {
		v:       "v0.2.0"
		default: true
	}
	"github.com/cue-tmp/jsonschema-pub/exp3/npmjs/jscpd@v0": {
		v:       "v0.1.0"
		default: true
	}
	"github.com/cue-tmp/jsonschema-pub/exp3/npmjs/prettier@v0": {
		v:       "v0.1.0"
		default: true
	}
	"github.com/cue-tmp/jsonschema-pub/exp3/npmjs/stylelint@v0": {
		v:       "v0.2.0"
		default: true
	}
	"github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0": {
		v:       "v0.3.0"
		default: true
	}
	"github.com/cue-tmp/jsonschema-pub/exp3/semanticrelease@v0": {
		v:       "v0.1.0"
		default: true
	}
}
-- schema.cue --
package schema

import p "github.com/cue-tmp/jsonschema-pub/exp3/npmpackage"

p.#Schema
-- data.json --
{
	"exports": {
		".": {
			"import": {
				"default": "./dist/esm/index.js",
				"types": "./dist/esm/index.d.ts",
				"types@\u003e=5.0": "./ts-5/index.v5.d.ts"
			},
			"require": {
				"default": "./dist/cjs/index.cjs",
				"types": "./dist/cjs/index.d.cts",
				"types@\u003e=5.0": "./ts-5/index.v5.d.cts"
			}
		},
		"./package.json": "./package.json"
	}
}

What did you expect to see?

A comprehensible failure message.

What did you see instead?

A failure message that's 28000 lines long.

It starts like this:

# test: TestCurationWithRealModules/#00/v2/github.com!cue-tmp!jsonschema-pub!exp3!npmpackage/#Schema/exports-test8 (1.190s)
> env CUE_CACHE_DIR=$WORK/.cache
> env CUE_CONFIG_DIR=$WORK/.config
> exec cue login --token $CUE_TOKEN
[stdout]
Login for registry.cue.works stored in $WORK/.config/logins.json
> exec cue vet -c .:schema data.json
[stderr]
exports: conflicting values =~"^\\./" and {".":{import:{default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"},require:{default:"./dist/cjs/index.cjs",types:"./dist/cjs/index.d.cts","types@>=5.0":"./ts-5/index.v5.d.cts"}},"./package.json":"./package.json"} (mismatched types string and struct):
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:99:16
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:536:36
    ./data.json:2:13
    ./schema.cue:5:1
exports: conflicting values =~"^\\./" and {default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"} (mismatched types string and struct):
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:100:11
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:62
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:522:16
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:46
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:536:36
    ./data.json:4:14
    ./schema.cue:5:1
exports: conflicting values =~"^\\./" and {import:{default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"},require:{default:"./dist/cjs/index.cjs",types:"./dist/cjs/index.d.cts","types@>=5.0":"./ts-5/index.v5.d.cts"}} (mismatched types string and struct):
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:100:11
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:25
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:46
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:536:36
    ./data.json:3:8
    ./schema.cue:5:1
exports: conflicting values [...#packageExportsEntry] and {".":{import:{default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"},require:{default:"./dist/cjs/index.cjs",types:"./dist/cjs/index.d.cts","types@>=5.0":"./ts-5/index.v5.d.cts"}},"./package.json":"./package.json"} (mismatched types list and struct):
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:99:16
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:540:28
    ./data.json:2:13
    ./schema.cue:5:1
exports: conflicting values null and {".":{import:{default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"},require:{default:"./dist/cjs/index.cjs",types:"./dist/cjs/index.d.cts","types@>=5.0":"./ts-5/index.v5.d.cts"}},"./package.json":"./package.json"} (mismatched types null and struct):
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:99:16
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:536:29
    ./data.json:2:13
    ./schema.cue:5:1
exports: conflicting values null and {default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"} (mismatched types null and struct):
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:100:11
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:62
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:522:16
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:46
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:536:29
    ./data.json:4:14
    ./schema.cue:5:1
exports: conflicting values null and {import:{default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"},require:{default:"./dist/cjs/index.cjs",types:"./dist/cjs/index.d.cts","types@>=5.0":"./ts-5/index.v5.d.cts"}} (mismatched types null and struct):
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:100:11
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:25
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:46
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:536:29
    ./data.json:3:8
    ./schema.cue:5:1
exports.".": conflicting values [...#packageExportsEntry] and {import:{default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"},require:{default:"./dist/cjs/index.cjs",types:"./dist/cjs/index.d.cts","types@>=5.0":"./ts-5/index.v5.d.cts"}} (mismatched types list and struct):
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:100:11
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:540:28
    ./data.json:3:8
    ./schema.cue:5:1
exports.import: conflicting values [...#packageExportsEntry] and {default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"} (mismatched types list and struct):
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:100:11
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:62
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:522:16
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:46
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:540:28
    ./data.json:4:14
    ./schema.cue:5:1
invalid value {exports:_|_(exports: invalid value {".":{import:{default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"},require:{default:"./dist/cjs/index.cjs",types:"./dist/cjs/index.d.cts","types@>=5.0":"./ts-5/index.v5.d.cts"}},"./package.json":"./package.json"} (does not satisfy matchN): exports: 0 matched, expected 1 (and 19 more errors)),_schema(github.com/cue-tmp/jsonschema-pub/exp3/npmpackage):{name?:strings.MaxRunes(214) & strings.MinRunes(1) & =~"^(?:(?:@(?:[a-z0-9-*~][a-z0-9-*._~]*)?/[a-z0-9-._~])|[a-z0-9-~])[a-z0-9-._~]*$",version?:string,description?:string,keywords?:[],homepage?:string,bugs?:string | {url?:net.AbsURL(),email?:string},license?:matchN(>=1, (#list){


... 27932 LINES OMITTED


} (does not satisfy matchN): 0 matched, expected >=1:
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:10
    ./data.json:2:2
    ./schema.cue:1:1
exports: 2 errors in empty disjunction::
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:99:16
exports.".": field not allowed:
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:99:16
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:18:2
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:21:3
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:103:8
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:520:37
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:527:4
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:529:4
    ./data.json:3:8
    ./schema.cue:1:1
    ./schema.cue:5:1
exports: 2 errors in empty disjunction::
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:25
exports.".": invalid value {import:{default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"},require:{default:"./dist/cjs/index.cjs",types:"./dist/cjs/index.d.cts","types@>=5.0":"./ts-5/index.v5.d.cts"}} (does not satisfy matchN): 0 matched, expected 1:
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:25
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:100:11
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:32
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:46
    ./data.json:3:8
exports.import: invalid value {default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"} (does not satisfy matchN): 0 matched, expected 1:
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:25
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:514:32
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:522:16
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:46
    ./data.json:4:14
exports.".": invalid value {import:{default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"},require:{default:"./dist/cjs/index.cjs",types:"./dist/cjs/index.d.cts","types@>=5.0":"./ts-5/index.v5.d.cts"}} (does not satisfy matchN): 0 matched, expected 1:
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:35
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:100:11
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:42
    ./data.json:3:8
exports.import: invalid value {default:"./dist/esm/index.js",types:"./dist/esm/index.d.ts","types@>=5.0":"./ts-5/index.v5.d.ts"} (does not satisfy matchN): 0 matched, expected 1:
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:35
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:522:16
    .cache/mod/extract/github.com/cue-tmp/jsonschema-pub/exp3/npmpackage@v0.3.0/schema.cue:532:42
    ./data.json:4:14
[exit status 1]
FAIL: /tmp/curate-fail/testcase-3503003621.txtar:7: unexpected command failure

The failure in v1.12.0 is somewhat similar except the value is printed on a single line that's 345431 characters long.

We should do a better job of figuring out how to print the matchN value in cases like this.
@rogpeppe rogpeppe added NeedsInvestigation Triage Requires triage/attention NeedsFix and removed NeedsInvestigation Triage Requires triage/attention labels Mar 12, 2025
@rogpeppe
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Unfortunately this error does not manifest under evalv3, but leaving here because I believe that matchN prints errors the same in both evaluator versions.

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